#rerebrace__upper_cannon__uppercannon  cannon that provides plate armor for the upper arm
  supertype:  #cannon.armor_plate  (medieval) a cylindrical piece of armor plate to protect the arm
  part of:  #body_armor__body_armour__suit_of_armor__suit_of_armour__coat_of_mail__cataphract  armor that protects the wearer's whole body

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